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Finding the Fourth Proportional to 163,253.06, 225,276.86 and 91,619.24

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Solution

The fourth proportional to 163,253.06, 225,276.86 and 91,619.24 is: 126,427.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,253.06 : 225,276.86 = 91,619.24 : x
  2. Step 2: Convert to fraction form
    163,253.06/225,276.86 = 91,619.24/x
  3. Step 3: Cross multiply
    163,253.06x = 225,276.86 × 91,619.24
  4. Step 4: Simplify right side
    163,253.06x = 20,639,695,495.03
  5. Step 5: Solve for x
    x = 20,639,695,495.03/163,253.06
  6. Step 6: Final answer
    x = 126,427.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.